|
|
#include <reg52.h>
typedef unsigned char uchar;
typedef unsigned int uint;
sbit ADDR0 = P1^0;
sbit ADDR1 = P1^1;
sbit ADDR2 = P1^2;
sbit ADDR3 = P1^3;
sbit ENLED = P1^4;
void main()
{
uchar cnt = 0;
uint i = 0;
ENLED = 0;
ADDR3 = 1;
ADDR0 = 0;
ADDR1 = 1;
ADDR2 = 1;
while(1)
{
P0 = ~(0x01<<cnt);
cnt++;
for(i=0; i<60000;i++);
if(8 == cnt)
cnt = 0;
}
}
|
|
